About: http://webisa.webdatacommons.org/178919921

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The present invention is an apparatus and a concomitant method for boosting a signal, e.g., an audio signal and/or a power signal, generated by at least one notification appliance in a supervised emergency voice evacuation system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com